Understanding Online Diagnostics

With online diagnostics, you can test and verify the hardware functionality of the switch while the switch is connected to a live network. The online diagnostics contain packet switching tests that monitor different hardware components and verify the data path and the control signals.

The online diagnostics detect problems in these areas:

Hardware components

Interfaces (Ethernet ports and so forth)

Solder joints

Table 38-1 lists the diagnostic test IDs and names. For information about test attributes, see the output from the show diagnostic content privileged EXEC command.

Table 38-1 Diagnostic Tests

Test ID Number

Test Name

1

TestPortAsicMem [B*D*R**]

2

TestPortAsicCam [B*D*R**]

3

TestPortAsicLoopback[B*D*R**]

4

TestPortLoopback [B*D*R**]

5

TestFpga [B*D*R**]

Online diagnostics are categorized as on-demand, scheduled, or health-monitoring diagnostics.

On-demand diagnostics run from the CLI.

Scheduled diagnostics run at user-designated intervals or at specified times when the switch is connected to a live network.

Configuring Online Diagnostics

You must configure the failure threshold and the interval between tests before enabling diagnostic monitoring. You can schedule online diagnostics to run at a designated time of day or on a daily, weekly, or monthly basis. Use the no form of this command to remove the scheduling. For detailed information about this command, see the command reference for this release.